40170938 has 8 divisors (see below), whose sum is σ = 60298932. Its totient is φ = 20071296.

The previous prime is 40170931. The next prime is 40170943. The reversal of 40170938 is 83907104.

It can be written as a sum of positive squares in 2 ways, for example, as 39853969 + 316969 = 6313^2 + 563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40170938² = 3227408519599688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40170931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3095 + ... + 9482.

Almost surely, 2^40170938 is an apocalyptic number.

40170938 is a deficient number, since it is larger than the sum of its proper divisors (20127994).

40170938 is a wasteful number, since it uses less digits than its factorization.

40170938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14176.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 40170938 is about 6338.0547488958. The cubic root of 40170938 is about 342.4816634650.

The spelling of 40170938 in words is "forty million, one hundred seventy thousand, nine hundred thirty-eight".